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434131023 = 31721140343
BaseRepresentation
bin11001111000000…
…101000001001111
31010020220010210210
4121320011001033
51342114143043
6111024533503
713521024054
oct3170050117
91106803723
10434131023
11203068077
12101481293
136bc31981
144192b02b
15281a6633
hex19e0504f

434131023 has 16 divisors (see below), whose sum is σ = 615810816. Its totient is φ = 271098240.

The previous prime is 434131007. The next prime is 434131039. The reversal of 434131023 is 320131434.

It is an interprime number because it is at equal distance from previous prime (434131007) and next prime (434131039).

It is not a de Polignac number, because 434131023 - 24 = 434131007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434131063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9411 + ... + 30932.

It is an arithmetic number, because the mean of its divisors is an integer number (38488176).

Almost surely, 2434131023 is an apocalyptic number.

434131023 is a deficient number, since it is larger than the sum of its proper divisors (181679793).

434131023 is a wasteful number, since it uses less digits than its factorization.

434131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40574.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 434131023 is about 20835.8110713262. The cubic root of 434131023 is about 757.1936104733.

Adding to 434131023 its reverse (320131434), we get a palindrome (754262457).

The spelling of 434131023 in words is "four hundred thirty-four million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 3 17 51 211 633 3587 10761 40343 121029 685831 2057493 8512373 25537119 144710341 434131023